Freezing crack or distortion proof cooling utensil

ABSTRACT

The present invention relates to a cooling utensil, which is a proof of freezing-crack and distortion. More particularly, an internal cavity of the utensil is fully filled the water to freeze in the freezer for cooling the serving food, such as a law fish, fruit, cold noodle or beer to feel fresh and tasty. For using the cooling bowl, the cooling cavity is filled the water or coolant for freezing. The cooling bowl is using for serving food. The cooling cavity is formed between the upper part and the lower part. The lower part is used a base to support the upper part. The upper part has same shape and size of the lower part for placing over the lower part. The elastic plate having flexibility and elastically restoring force is attached to the lower part, the upper part for assembling. Further, the cooling bowl having a cooling cavity is filled the water or coolant and freeze to use serving food. The lower part has built a dual wall to form a vacuum gap between the inner wall and the outer wall for insulation, so that the outer wall has no condensed water gained. The elastic tube ( 4   k ) having elastically restoring force is inserted through the water inlet ( 33 ). the plug bolt ( 5   k ) mounted at the mouth of the water inlet ( 33 ), for sealing the water filled cavity.

TECHNICAL FIELD

The present invention relates to a utensil for maintaining coldtemperature. More particularly, the utensil has a special built-incompartment to fill the water for cooling or freezing in the freezer.The utensil would not freeze-crack or distortion while the water in theutensil compartment is freezing in the refrigerator. Therefore, thefood, such as a low fish (sashimi), fruits, cold noodle or beer on thisutensil can be kept fresh and tasty as long as the utensil maintains thecool temperature for a quite long time.

BACKGROUND ART

A conventional utensil has an internal cavity to fully or partially fillthe water for cooling or freezing. If the cavity is fully filled thewater, it will cause the utensil broken due to the volume expansionwhile the water is freezing in the freezer. Depending on the material,the utensil will be cracked for the ceramic or glass, and will bedistorted or burst for the metal plate or plastic product. As a result,the damaged utensil can not longer to be used.

Accordingly, the internal cavity of the utensil is not fully filled thewater for an air pocket. If the water is freezing, the air pocket, whichis formed on top of the ice, is caused an inferior heat transfer betweenthe ice and the food on the utensil.

On the other hand, if the utensil is put upside down while the water isfreezing in the freezer, the freezing utensil might be good heattransfer at the beginning of usage, but it will not go longer as the icestart melting to form the air pocket below the contacting surfaces. Thecooling effect between the ice and the food on the utensil will berapidly decreased. Therefore, it is hard to achieve the purpose ofmaintaining the food cooling fresh and testy during the eating.

Other conventional cooling utensil has a separated cooling unit, whichhas a form of a drawer for filling ice or dry-ice and inserting intounderneath of the utensil to indirectly contacting the serving food.However, this kind of conventional utensil usually has a big gap betweenthe drawer and utensil body. Due to the large gap, the cooling effect israpidly vanished.

It is also inconvenient to handle the main body of the utensil and theseparated cooling unit for separately preparing the ice or dry ice.

DISCLOSURE OF INVENTION Technical Problem

In order to solve the problems of the conventional utensils, thenon-crack and distortion utensil of the present invention has developed.The purpose of the present invention is to provide a flexible tube or acompartment being made of an elastic plate with restoring capability.The compartment is enveloped by the upper part and the lower part of theutensil with a lid for filling the water.

It is demanded a new cooling utensil, which would not be cracked ordistorted during the freeing process due to the volume expansion. Evenif the ice inside of the utensil is melting, the low temperature must bemaintained to keep the food in cool condition for a long time. It isalso required a simple structure for easily manufacturing by using thevarious materials and assembling the product with lower cost. So, itmust be possible to design the various styles of the utensils. It musthave durability not to explode, even though the utensil is heated on theflame by a mistake.

Technical Solution

In order to achieve the aforementioned purpose, the cooling utensil ofthe present invention has a compartment to fill the water or coolant forfreezing to serving. Such a compartment, which is made of an elasticplate having restoring capability, has formed a cavity between the upperpart and lower part of the utensil. The outer surface of the upper partforms the various shapes of dishes or containers for directly contactthe food, and the outer feature of the lower part forms a base of theutensils, such as a disk-shaped foundation, a standing legs orsupporter. The upper part and lower part are brought together to be onebody of the utensil by binding means, such as an assembling or welding.

The usage of the cooling utensil of the present invention is simple asfollows: first, fill the water or coolant in the compartment, next, theutensil is placed in the freezer until the water is freezing. Aftercompletely freezing the water, the utensil is used to contain the foodon it. The upper part, which is directly contacting the food, hasassembled with the lower part to form a body. An elastic tube isinstalled between the upper part and the lower part for filling thewater. A water inlet is connected the elastic tube, and a plug bolt isused for sealing the inlet.

ADVANTAGEOUS EFFECTS

The cooling utensil of the present invention can be produced byassembling the parts. Even if, the water is fully filled in the elastictube and freeze in the freezer, the utensil of the present inventionwill not be crack or distortion because the elastic tube will beexpanded as expanding the volume of freezing ice. As the ice is melting,the ice floats over the melted water to keep contacting the upper partof the utensil. Therefore, the serving food on the upper part of theutensil will be kept cooling.

The parts have simple configurations to easily assemble together. Thus,it will reduce the manufacturing cost. It is also possible to designvarious shapes and select various materials. The cooling utensil of thepresent invention is provided a safety valve for preventing explosion,in case of unaware heating. The cooling utensil of the present inventionis also provided a thermometer. Thus, the cooling is felt by visual, sothat the serving food is felt fresh and tasty to stimulate theappetizer. The cooling utensil of the present invention is also provideda cover for maintaining the cooling for a longer time.

It is also possible to fill a coolant in the elastic tube forefficiently prolong the cooling time for the food, which is requiredcooling condition to serve or store.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic view showing the exploded cooling utensilaccording to the first embodiment of the present invention.

FIG. 2 is the schematic view of an assembled cooling utensil accordingto the first embodiment of the present invention.

FIG. 3 is the cross sectional view of the cooling utensil according tothe first embodiment of the present invention.

FIG. 4 is a plug bolt of the cooling utensil according to the firstembodiment of the present invention.

FIG. 5 is a schematic view showing the exploded cooling utensilaccording to the second embodiment of the present invention.

FIG. 6 is the cross sectional view of the cooling utensil according tothe second embodiment of the present invention.

FIG. 7 is a schematic view showing the exploded cooling utensilaccording to the third embodiment of the present invention.

FIG. 8 is the cross sectional view of the cooling utensil according tothe third embodiment of the present invention.

FIG. 9 is a schematic view showing the exploded cooling utensilaccording to the fourth embodiment of the present invention.

FIG. 10 is the cross sectional view of the assembled cooling utensilaccording to the fourth embodiment of the present invention.

FIG. 11 is a schematic view showing the exploded cooling utensilaccording to the fifth embodiment of the present invention.

FIG. 12 is the cross sectional view of the assembled cooling utensilaccording to the fifth embodiment of the present invention.

FIG. 13 is a schematic view showing the exploded cooling utensilaccording to the sixth embodiment of the present invention.

FIG. 14 is the cross sectional view of the assembled cooling utensilaccording to the sixth embodiment of the present invention.

FIG. 15 is a schematic view showing the exploded cooling utensilaccording to the seventh embodiment of the present invention.

FIG. 16 is the cross sectional view of the assembled cooling utensilaccording to the seventh embodiment of the present invention.

FIG. 17 is a schematic view showing the exploded cooling utensilaccording to the eighth embodiment of the present invention.

FIG. 18 is the cross sectional view of the assembled cooling utensilaccording to the eighth embodiment of the present invention.

FIG. 19 is a schematic view showing the exploded cooling utensilaccording to the ninth embodiment of the present invention.

FIG. 20 is the cross sectional view of the assembled cooling utensilaccording to the ninth embodiment of the present invention.

FIG. 21 is a schematic view showing the exploded cooling utensilaccording to the tenth embodiment of the present invention.

FIG. 22 is the cross sectional view of the assembled cooling utensilaccording to the tenth embodiment of the present invention.

FIG. 23 is a schematic view showing the exploded cooling utensilaccording to the eleventh embodiment of the present invention.

FIG. 24 is the cross sectional view of the assembled cooling utensilaccording to the eleventh embodiment of the present invention.

FIG. 25 is a schematic view showing the exploded cooling utensilaccording to the twelfth embodiment of the present invention.

FIG. 26 is the cross sectional view of the assembled cooling utensilaccording to the twelfth embodiment of the present invention.

FIG. 27 is a schematic view of the exploded cooling utensil according tothe thirteenth embodiment of the present invention.

FIG. 28 is a schematic view of the exploded cooling utensil according tothe fourteenth embodiment of the present invention.

FIG. 29 is the cross sectional view of the assembled cooling utensilaccording to the fourteenth embodiment of the present invention.

FIG. 30 is a schematic view of the exploded cooling utensil according tothe fifteenth embodiment of the present invention.

FIG. 31 is the cross sectional view of the assembled cooling utensilaccording to the fifteenth embodiment of the present invention.

FIG. 32 is a schematic view of the exploded cooling utensil according tothe sixteenth embodiment of the present invention.

FIG. 33 is the cross sectional view of the assembled cooling utensilaccording to the sixteenth embodiment of the present invention.

FIG. 34 is a schematic view of the exploded cooling utensil according tothe seventeenth embodiment of the present invention.

FIG. 35 is the cross sectional view of the assembled cooling utensilaccording to the seventeenth embodiment of the present invention.

FIG. 36 is a schematic view of the exploded cooling utensil according tothe eighteenth embodiment of the present invention.

FIG. 37 is the schematic view of the assembled cooling utensil accordingto the eighteenth embodiment of the present invention.

FIG. 38 is an overall outlook of the assembled cooling utensil accordingto the eighteenth embodiment of the present invention.

FIG. 39 is the cross sectional view of the cooling utensil according tothe eighteenth embodiment of the present invention.

FIG. 40 is an outlook of the alternative top plate of the assembledcooling utensil according to the eighteenth embodiment of the presentinvention.

FIG. 41 is a practical serving on the alternative top plate of thecooling utensil according to the eighteenth embodiment of the presentinvention.

FIG. 42 is across sectional view of the practical serving on thealternative top plate of the cooling utensil according to the eighteenthembodiment of the present invention.

FIG. 43 is a schematic view of the exploded cooling utensil according tothe nineteenth embodiment of the present invention.

FIG. 44 is the schematic view of the assembled cooling utensil accordingto the nineteenth embodiment of the present invention.

FIG. 45 is an overall outlook of the assembled cooling utensil accordingto the nineteenth embodiment of the present invention.

BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, the various types of the cooling utensils of the presentinvention will be descried in detail accompanying with the drawings.

For the same or similar component, the numeral reference is usedidentically in the various types of the cooling utensil.

FIG. 1 is a schematic view showing the exploded cooling utensilaccording to the first embodiment of the present invention. FIG. 2 isthe schematic view of an assembled cooling utensil according to thefirst embodiment of the present invention. FIG. 3 is the cross sectionalview of the cooling utensil according to the first embodiment of thepresent invention. FIG. 4 is a plug bolt of the cooling utensilaccording to the first embodiment of the present invention.

As seen in FIG. 1 to FIG. 4, the cooling utensil according to the firstembodiment of the present invention is comprised of that an upper part(2), a lower part (3), an elastic plate (4), a plug bolt (5), a sealingring (6) and a fastening bolt (7). The upper part (2) is assembled withthe lower part (3) by the fastening bolt (7) forming a water inlet. Theupper part (2) has formed a dome shape with series of grooves (23) fromtop to edge in the radial directions to drain the condensed water beinggenerated due to the temperature difference. Then, the food served onthe upper part of the utensil will not allow absorbing the condensedwater, thus the food maintains fresh and tasty at the cool temperature.At a summit of the dome shape, a thermometer (24) is attached to displaythe serving temperature.

Further, a center post (26) having female thread is integrally formedunderneath the dome shape of the upper part (2) to thread the fasteningbolt (7). A water inlet (33) is connected to a water channel (26 a),which is formed at a core of the fastening bolt (7) under the lower part(3).

Due the dome shape, the center of the upper part (2) is raised to behigher than the circumferential edge. Therefore, it is effectivelytransferred the chilled temperature to the serving food, it is prefer toput the food directly on the dish with out laying sliced radishes underthe food, for example of serving the sliced raw fish dishes.

When a dinner can display the serving temperature for the food, which isrequired keeping cool, the customer may be emotionally confidential andenjoy the serving food in visual and testes.

For displaying means of the temperature, a thermometer (24) can be usedan analogue, a digital or a thermo-color being varied the colordepending on the temperature changes.

The lower part (3) usually forming either a circular or a rectangularshape as same size and same of the upper part (2) to be a supporter orbase of the utensil.

For other kind of utensil, the upper part (2), which is declined towardthe center, has integrally formed a tube typed post (26) with a femalethread to thread the fastening bolt (7). A water inlet (33), which isconnected to a water tube, is formed at a core of the fastening bolt (7)under the lower part (3).

The upper part (2) and the lower part (3) of the utensil are made of theanti-rust materials, such as a stainless, aluminum, magnesium-aluminumalloy or clad plate binding two different metals, and non-metalmaterial, such as a glass, ceramic or melamine polyester. Especially,for the metal material, the surface is treated with harmless process,such as a gold plate, silver plate, silver-nano coating, ceramiccoating, anodizing.

If the clad plate is used to product, the utensil could besemi-permanently use, because the clad plate is thicker than the metal,which is treated plating or coating.

Further, if the utensil is performed the treatment of the silver-nanocoating, it will have anti-biotic effects to kill the germ in the lawfish.

The elastic plate (4) is inserted between the upper part (2) and lowerpart (3) and tightly sealed one another for providing a cavity (25) tofill the water. A water inlet (33), which is located at the center oflower part (3), is formed through core of the fastening bolt (7). Thesupporting post (26) located under the center of the upper part (2) isconnected to the water channel (26 a) for filling the water to thecavity (25). When the water is poured into the water inlet (33), thewater flow is passed through the supporting post (26) and water channel(26 a) to the cavity (25). At the center of the elastic plate (4), apair of an annular shaped sealing seat (41) is provided on both sides ofthe inlet cavity (25). A pair of edge sealing ring (42) is mounted alongthe circumferential grooves on both sides of the elastic plate (4). Asthe upper part, lower part, elastic plate (4) and sealing rings areassembled one another, then the fastening bolt (7) is inserted throughthe supporting post (26) to tightly fasten the final product. Thesealing ring (42) and the annular shaped sealing seat (41) are properlymounted to prevent the leakage.

The elastic plate (4) must have a property of elasticity and restoringcapability. Therefore, it could be made of rubber to be stable for thecoolant or water for a long period of usage. Further, a metal plateforming a bellows shape can be used to have a property of elasticity andrestoring capability. The elastic plate (4) could be altered the variousshapes to have a property of elasticity and restoring capability.

Because the elastic plate (4) has flexibility and restoring capability,it will properly compensate the expansion or shrink depending on thefreezing water or melt the ice. The sealing portions of the cavity (25)will prevent the leakage from the expansion or shrink.

The fastening bolt (7) is integrally combined the upper part (2), theelastic plate (4), and lower part (3). The fastening bolt (7) has ahollow inside to form a female thread for mating to the plug bolt (5). Asealing ring (6) is inserted when the plug bolt (5) is inserted to thefastening bolt (7) for tightly sealing the inlet.

Once the cooling utensil (1) is completely assembled, the plug bolt (5)is released to fully fill the water in the cavity (25). Then, the plugbolt (5) is inserted to the fastening bolt (7) for tightly sealing theinlet.

As shown in FIG. 4, the plug bolt (5) has designed to have a function ofthe safety valve for preventing the explosion when the utensil isunaware heated, such as a fire or mistakenly place it on the oven. Ifthe utensil is over heated, the safety vale in the plug bolt (5) isreleased the steam in the cavity (25) to reduce the pressure.

(*69) The structure of the safety valve in the plug bolt (5) and itsassembly procedure is as follows:

As shown in FIG. 4, the outer shape of the fastening bolt (7) has formeda male thread and a bolt head (51). The bolt head (51) has formed anouter hollow core for engaging to a plug cap bolt (55), and an innerhollow core. The plug cap bolt (55) has also formed the hollow core. Anouter sealing seat (54 a) is formed at a step of the hollow core of theplug cap bolt (55) to mount an outer sealing ring (57) and an outervalve (54). The diameter of the inner hollow core is smaller than thatof the outer hollow core. An inner sealing seat (53 a) is formed on astep, which is adjacent to the inner and outer hollow core for mountingan annular sealing ring (56) and an inner valve (53). The inner valve(53) is threaded at a tip of a T-shaped valve rod (52) and the outervalve (54) is formed at the head of the T-shaped valve rod (52). Acompression spring (58) is mounted on the stem of the T-shaped valve rod(52) for exerting the tension between the inner valve (53) and the plugcap bolt (55).

Herein, the outer valve (54) of the T-shaped valve rod (52) is not onlyacting as a safety valve, but also acting as a stopper to preventinvasion of the foreign object for keeping clean.

Such a structure of the plug bolt (5), the inner valve (53) and theouter valve (54) are mounted on the inner sealing seat (53 a) and theouter sealing seat (54 a), respectively for exerting the expanding forceby the spring (58). The plug bolt (5) is sealed the filled water in thecavity (25) for cooling, but vent out the steam when it is unawareheating by retrieving outward the inner valve (53) and the outer valve(54), at same time to prevent the explosion.

The assembly process of the cooling utensil of the first embodiment ofthe present invention is as follows:

First, the elastic plate (4) is placed on top of the lower part (3) andsealed with the sealing parts. The upper part (2) is overlap on theassembled lower part (3) and sealed with the sealing parts. Thefastening bolt (7) is inserted into the water inlet (33) to fasten thepre assembled the elastic plate (4), lower part (3) and upper part (2).Thus, the cavity is formed between the elastic plate (4) and the upperpart (2) to fill the water. However, an air pocket (31) is formedbetween the elastic plate (4) and the lower part (3). When the water isfilled, the water flows through the fastening bolt (7) to the cavity. Asthe plug bolt (5) and the sealing ring (6) are inserted to the fasteningbolt (7) and fastening it. Through the process, the cooling utensil (1)is completed the assembly for ready to freeze in the freezer.

The air pocket (31), which is located between the elastic plate (4) andthe lower part (3), is acting as an insulation to prevent the condensedwater under the lower surface of the utensil while the elastic plate (4)is expanding or shrinking depending on the water in the cavity isfreezing or melting. Because the present cooling utensil is not requireda separate insulation, the structure will be simple and save theinsulating cost.

Further, the water, non-toxic coolant or mixture of the water andcoolant is used to fill in the cavity (25) of the cooling utensil toprolong the cooling time.

As discussed above configuration, the function of each component in thecooling utensil (1) of the first embodiment is described in detail asfollows:

(*78) When the water is fully filled in the cavity (25) of the coolingutensil (1) and freeze in the freezer, the elastic plate (4) will beexpanded as expanding the volume of freezing ice. Therefore, theexpansion of the elastic plate (4) prevents a crack or distortion of theutensil. When the freeze utensil is used in the room temperature, theice in the cavity (25) is melted. When the ice starts melting, theelastic plate (4) is exerted restoring force to shrink the cavity asshrunken the volume of the ice. Because the cavity (25) is fully filledthe water, there is no air pocket inside. When the water in the cavity(25) is completely freezing, there is only ice exist. During the utensilused in the room temperature, the cavity (25) is filled with the mixtureof ice and water without air. Therefore, the water in the utensil won tbe fluctuated during the serving. Because the ice floats on the meltedwater in the cavity (25) to contact the upper part of the utensil, theserving food on the upper part of the utensil is always kept cooling.Therefore, the present utensil is favorable to use for the customer.

Further, the cooling utensil is provided a thermometer (24), so that itgives feeling of visual cooling to stimulate the appetizer andconfidence for the serving food fresh and tasty.

The cooling utensil (1) of the present invention is also maintained thecooling condition for the serving food fresh and tasty during the usereating the serving food.

Due to the safety function valve of the plug bolt (5), it guarantees asafety and security to the customer and the surrounding persons forpreventing the explosion when the utensil is unaware heated.

The cooling utensil (1) of the present invention is built through theassembly of the components without welding process. So that, it hasadvantages to easy manufacturing with lowering the product cost.

FIG. 5 is a schematic view showing the exploded cooling utensilaccording to the second embodiment of the present invention. FIG. 6 isthe cross sectional view of the cooling utensil according to the secondembodiment of the present invention.

As seen in FIG. 5 to FIG. 6, the cooling utensil according to the secondembodiment of the present invention comprises that: an upper part (2 a),a lower part (3 a) and an elastic plate (4 a). A set of springs (8) ismounted between the elastic plate (4 a) and a lower part (3 a) forsupporting the upper plate (2 a). A fastening bolt (7 a) and a sealingring (6 a) is used to assemble the upper part (2 a), the lower part (3a) and the elastic plate (4 a) to be a final product.

The basic configuration of the upper part (2 a), lower part (3 a) andthe elastic plate (4 a) are same as that of the first embodiment of thepresent invention, except the shape.

The upper part (2 a) forms a rectangular-shaped plate having a pluralityof the square sections, which is divided by a series of ordinate andabscissa grooves (23) for draining the condensed water. A set ofsupporting posts (26) is integrally installed under the upper part (2 a)at four corners. The center of the supporting post (26) forms a waterchannel (26 a) in the perpendicular direction. The lower part (3 a)forming a rectangular-shaped topless box has four water inlets (33) atfour corners to match with the supporting posts (26) of the upper part(2 a). The elastic plate (4 a) is also forming a rectangular-shapedtopless box, which is slightly smaller and shallower than the lower part(3 a) for fitting. The four fastening bolts (7 a) are thoroughlyinstalled at four corners of the elastic plate (4 a). The elastic plate(4 a) is made of the rubber or plastic which has a restoring force. Apair of springs (8) is mounted on the mounting seats between the elasticplate (4 a) and the lower part (3 a) for assisting the restoring forcewhen the elastic plate (4 a) is exerted recovering force because of thevolume shrinking while the ice is melting. Thus, the upper part can keepcontacting to the ice for a long period. The elastic plate (4 a) hasformed the grooves around the periphery on both sides for mounting thesealing (42). Thus, the cooling cavity (25) is sealed for filling thewater.

A sealing ring (5 a) is inserted in the fastening bolts (7 a) whensealing the cooling cavity (25). The four fastening bolts (7 a) are usedto assemble the elastic plate (4 a), the lower part (3 a) and the upperpart (2 a) to be a body. One of four fastening bolts (7 a) has a safetyfunction as same structure of the first embodiment of the presentinvention.

FIG. 7 is a schematic view showing the exploded cooling utensilaccording to the third embodiment of the present invention. FIG. 8 isthe cross sectional view of the cooling utensil according to the thirdembodiment of the present invention.

The cooling utensil (lb) according to the third embodiment of thepresent invention comprises that: an upper part (2 b), a lower part (3b) and an elastic plate (4 b). The upper part (2 b) further comprises anupper frame (29), a frame sealing ring (27) and a cooling plate (21). Aset of fastening bolts (7 b) and sealing rings (6 b) are used toassemble the upper part (2 b), lower part (3 b) and the elastic plate (4b). The overall shape of the upper part (2 b), lower part (3 b) and theelastic plate (4 b) of the third embodiment of the present invention issimilar with that of the second embodiment of the present invention,except the frames and few other items. However, the basic functions andconcept are same as the second embodiment.

The upper part (2 b) forming a dome shaped plate for serving the foodfurther comprises a cooling plate (21) and an annular frame (29) tofixing the cooling plate (21).

A frame sealing ring (27) is placed between the two parts of the coolingplate (21) and annular frame (29). Then, a set of fixing brackets (28 a)and fixing bolts (28) are inserted to assemble the cooling plate (21)and the annular frame (29) to be one body.

The reason why the upper part (2 b) is assembled with two pieces is thatit is possible to design the cooling plate (21) in various shapes andproduce using the various materials. The natural materials, such as ajade or marble are very hard to forming the desired shapes. Thematerials, such as a glass or ceramic are so fragile and hard to handle.However, the cooling plate (21), which is made of the expansive and highquality of material, can be easily handled, if the cooling plate (21) iscombined with the metal frame.

Such the cooling plate (21), which can be used for a semi-permanent,forms a series of grooves (23) to drain the condensed water. The annularframe (29), which looks like an up side down hat, has a cylindricallateral wall with opened center and the brim is slightly and outwardlyinclined. A set of built-in brackets (26) are attached inside of thecylindrical lateral wall at four places to form a water inlet (26 a).The elastic plate (4 b) is also forming a cylindrical-shaped basin witha flexible bottom having elastically restoring capability, such as arubber. The annular frame (29) has a plurality of thread holes forinstalling the fixing bolts, a plurality of mounting holes for passingthrough the fastening bolts (7 b) and a pair of sealing grooves (42) onboth sides for sealing the water cavity (25).

The lower part (3 b) forming a cylindrical-shaped container without top,has a plurality of mounting holes for passing through the fasteningbolts (7 b) to match with the mounting holes of the annular frame (29)for passing through the fastening bolt (7 b).

The assembly of the upper part (2 b), the lower part (3 b) and thecooling plate (21) is combined by the fastening bolts (7 b). At leastone of four fastening bolts (7 a) has a safety function as samestructure of the first embodiment of the present invention.

FIG. 9 is a schematic view showing the exploded cooling utensilaccording to the fourth embodiment of the present invention. FIG. 10 isthe cross sectional view of the assembled cooling utensil according tothe fourth embodiment of the present invention.

The cooling utensil (1 c) according to the fourth embodiment of thepresent invention comprises that: an upper part (2 c), a lower part (3c) and an elastic plate (4 c). The lower part (3 c), which is forsupporting the elastic plate (4 c), is used as a base for supporting theutensil.

The upper part (2 c), which is for serving foods, forms a hemisphericalshape at the center. A cavity is formed under the upper part (2 c) forfilling the water. An annular frame (29) having a hat-shape is slightlyinclined outward for fixing the cooling plate (21). The upper part (2 c)forms a cylindrical-shaped container with downward opening having a mailthread (21 a) on outer wall. The lower part forms a cylindrical-shapedcontainer without a top and having a female thread (35) on the innerwall for mating to the mail thread (21 a) of the upper part. An elasticplate (4 c) forming a disk-shape and annular sealing ring (42) areinstalled to fit under a rim of the mail thread (21 a) of the upper part(2 c).

The upper part (2 c) could be made of the various materials, forexample, metal plates, such as an aluminum, magnesium, stainless steel,clad plate, etc., non-metals, such as a ceramic, resin, glass, jadestone, etc. The upper part (2 c) could be performing the surfacetreatment for coating, painting, and plating to provide an image of highquality.

The elastic plate (4 c) forming a disk shape with convex center, has asame diameter of the mail thread (21 a) of the upper part (2 c). Underthe elastic plate (4 c), an air pocket (31) is formed for expansion andshrink. A pair of springs (8) is fitted on the mounting seats formed onthe lower part (3 c) for assisting the restoring force of the elasticplate (4 c). The elastic plate (4 c) is made of the robber materialhaving flexibility and restoring capability. An L-shaped annular sealingring (42) is mounted into the circumferential grooves formed on bothsides of the upper part (2 c) to seal between the cavity (25) and theupper part (2 c).

The lower part (3 c) forming a cylindrical-shaped basin with closedbottom has a female thread on inner surface to match with the malethread (21 a) of the upper part (2 c). The elastic plate (4 c) ismounted under the upper part (2 c) to form a cavity (25) for fillingwater. The upper part (2 c), lower part (3 c) and the elastic plate (4c) are assemble together to be a body of the cooling utensil (1 c).

If the upper part (2 c) is used a strong material and the bottom of thelower part (3 c) is used the flexible material, the elastic plate (4 c)may not employed. Thus, the bottom of the lower part (3 c) can be expandor shrunken during the water is freezing or ice is melting.

As discussed the components so far, the combining process of thecomponents in the cooling utensil according to the fourth embodiment isdescribed in detail as follows:

First, the upper part (2 c) is turned over and placed the elastic plate(4 c). Next, the lower part (3 c) places over the elastic plate (4 c)and tighten the fixing bolt and fastening bolt to complete the assembly.

Such a cooling utensil (1 c) is placed in the freezer for freezing thewater filled in the cavity (25). As the water freeze, the elastic plate(4 c) would be expanded outward. Thus, it will prevent thefreezing-crack or distortion of the cooling utensil (1 c).

Further, the food served on the upper part (2 c) of the cooling utensil(1 c) will always contact with the ice during the serving. Because themelted water sink down to float the ice and the cavity (25) will bepushed up by the elastic plate (4 c) when the volume is decreased forthe ice melting. At the beginning, the water is fully filled. So that,there is no air exist in the cavity (25). There is only mixture of waterand ice exists in the cavity (25) during the serving time. Therefore,cooling utensil (lc) will effectively cooling the served food on it.

FIG. 11 is a schematic view showing the exploded cooling utensilaccording to the fifth embodiment of the present invention. And FIG. 12is the cross sectional view of the assembled cooling utensil accordingto the fifth embodiment of the present invention.

The cooling utensil (1 d) according to the fifth embodiment of thepresent invention comprises that: an upper part (2 d) forming a cup forbeer, an elastic plate (4 d) and a lower part (3 d) is forming a base.

The upper part (2 d), which is forming a dual cup for beer, is made oftransparent glass. The cavity (25) is formed between the dual walls forfilling the water or coolant. The elastic insulating layer (12) isattached to the inside of the outer glass to assist the elastic plate (4d) action and preventing the condensed water on the outer wall of thecup. The lower part (3 d) has formed a female thread (35) for mating tothe male thread (21 a) formed outside of the upper part (2 d).

Instead of the dual cup, the cavity (25) is formed only at the bottomportion of the cup, to save the production cost. The elastic plate (4 d)forms a hat-shaped basin with an opened bottom and a spring mountingseat at the center for mounting a spring (8), which is assisted toprevent deflection of the elastic plate (4 d). An annular sealing ring(42) is installed between the annular frame of the elastic plate (4 d)and the bottom of the upper part (2 d) to seal the cavity (25). An airpocket is formed between the lower part (3 d) and the elastic plate (4d) to allow expanding and shrinking of the elastic plate (4 d). Theelastic plate (4 d) is made of a flexible material.

The lower part (3 d), which could be made of transparent glass, forms acylindrical-shaped shallow basin with topless and a female thread (35)is formed inner lateral wall to mate with the male thread (21 a) of theupper part (2 d) to fix the elastic plate (4 d). Therefore, the cavity(25) formed between the elastic plate (4 d) and the upper part (2 d) issealed. At this point, the upper part (2 d), the elastic plate (4 d) andthe lower part (3 d) are combined to be a body.

FIG. 13 is a schematic view showing the exploded cooling utensilaccording to the sixth embodiment of the present invention. FIG. 14 isthe cross sectional view of the assembled cooling utensil according tothe sixth embodiment of the present invention.

The cooling utensil (le) according to the sixth embodiment of thepresent invention comprises that: an upper part (2 e), an elastic plate(4 e) and a lower part (3 e) forming a base.

The upper part (2 e), which is intended to use a food container, forms acircular basin being divided into two half circular compartments. Thecavity (25) is formed between the dual walls for filling the water orcoolant. The elastic insulating layer (12) is attached to the inside ofthe outer wall to assist the elastic plate (4 e) action and preventingthe condensed water on the outer wall. The lower part (3 e) has formed afemale thread (35) for mating to the male thread (21 a) formed outsideof the upper part (2 e).

Because the food container has divided into two half circularcompartments, it is possible to store the two different foods at thesame time.

The configuration of the elastic plate (4 e) and the lower part (3 e)are same that of the fifth embodiment of the present invention. A spring(8) is mounted on the spring mounting seat located at the center forassisting and preventing the deflection of the elastic plate (4 d).

FIG. 15 is a schematic view showing the exploded cooling utensilaccording to the seventh embodiment of the present invention. FIG. 16 isthe cross sectional view of the assembled cooling utensil according tothe seventh embodiment of the present invention.

The cooling utensil (1 f) according to the seventh embodiment of thepresent invention comprises that: an upper part (2 f), an elastic plate(4 f), a lower part (3 f) forming a base and a lid (9 f).

The upper part (2 f) being intended to use a food container, forms acylindrical dual basin. The cavity (25) is formed between the inner andouter walls for filling the water or coolant. The elastic insulatinglayer (12) is attached to the inside of the outer wall to assist theelastic plate (4 f) action and preventing the condensed water on theouter wall. The upper circumferential portion of the upper part (2 f)forms a male thread (21 b) to close a lid. The lower part (3 e) hasformed a female thread (35) for mating to the male thread (21 a) formedlower circumferential portion of outside of the upper part (21). Themale thread (21 b) may be used the double or triple pitched for rapidopen and close the lid.

The configuration of the elastic plate (4 f) and the lower part (31) aresame that of the fifth embodiment of the present invention. A spring (8)is mounted on the spring mounting seat located at the center of thelower part (3 f) for assisting and preventing the deflection of theelastic plate (4 f).

The lid (9 f) having a circular shape forms a female thread (91) tomatch with the male thread (21 b) on the upper circumferential of theupper part (2 f). Therefore, it is possible to keep the food for a longtime.

The cavity (25) formed between the elastic plate (4 f) and the upperpart (2 d) is filled the water or coolant. Because the container closedby the lid (9 f), the food in the container can be stored longer time.At this point, the upper part (2 d), the elastic plate (4 d) and thelower part (3 d) are combined to be a body.

If the air is shrunken in the closed container, it will be a negativepressure. Thus, it is hard to open the container lid. Therefore, the lid(9 f) has an air vent to easily open when the air volume is shrunken.

FIG. 17 is a schematic view showing the exploded cooling utensilaccording to the eighth embodiment of the present invention. FIG. 18 isthe cross sectional view of the assembled cooling utensil according tothe eighth embodiment of the present invention.

The cooling utensil (1 g) according to the eighth embodiment of thepresent invention comprises that: an upper part (2 g), an elastic plate(4 g), a lower part (3 g) forming a base and a lid (9 g).

The configuration of the upper part (2 g) is same that of the seventhembodiment of the present invention. Only the difference is that theinner diameter of the lid (9 f) is same as the outer diameter of theupper part (2 f). The upper circumferential portion of the upper part (2f) forms a male thread (21 b) to close a lid (9 g). The male thread (21b) may be used the double or triple pitched for rapid open and close thelid (9 g).

FIG. 19 is a schematic view showing the exploded cooling utensilaccording to the ninth embodiment of the present invention. FIG. 20 isthe cross sectional view of the assembled cooling utensil according tothe ninth embodiment of the present invention.

The cooling utensil (1 h) according to the ninth embodiment of thepresent invention comprises that: an upper part (2 h), an elastic plate(4 h), a lower part (3 h) forming a base and a lid (9 h).

The configuration of the upper part (2 h) is same that of the seventhembodiment of the present invention. Only the difference is that the lid(9 h) has an annular flange (21 c) with a sealing ring (91). The outerdiameter of annular flange (21 c) is same as the inner diameter of theupper part (2 f). The sealing ring (91) of the lid (9 h) is tightlycontact the inner wall of the upper part (2 h) to seal the container.

The head (94) of the lid (9 h) is larger than the annular flange (21 c),so that the lid (9 h) is slightly protruded out of the upper part (2 h)for easily grasping to open the lid.

The cooling utensil (1 h) of the ninth embodiment of the presentinvention is that the lid (9 h) is depressed into or pulling out fromthe upper part (2 h) for closing or opening.

FIG. 21 is a schematic view showing the exploded cooling utensilaccording to the tenth embodiment of the present invention. FIG. 22 isthe cross sectional view of the assembled cooling utensil according tothe tenth embodiment of the present invention.

The cooling utensil (1 i) according to the tenth embodiment of thepresent invention comprises that: an upper part (2 i), an elastic plate(4 i), a lower part (3 i) forming a base and a plug bolt (5 i) havingsafety function.

The upper part (2 i) is formed a large sized deep bowl to contain alarge amount of food, such as a cold noodle.

It is not shown in figure, but a thermometer can be attached on thecooling bowl to visual check the feeling condition.

The upper part (2 i) is combined to the elastic plate (4 i) to form acavity (25) for filling the water. A fastening bolt (36) with the plugbolt (5 i) is installed at the center of the lower part (3 i). Theelastic part (4 i) having flexibility and restoring capability isattached inner surface of the lower part (3 i), so that it preventspenetrating of the water. Because the lower part (3 i) is attachedinsulation material, the outer surface of the utensil will not becondensed the moisture during the serving food, and prevent the losingcool condition for prolong the serving time.

The cavity (25) contains the mixture of ice and water without air,because the cavity (25) is fully filled the water at the beginning.Further, the cavity (25) will push up by the elastic part (4 i) asdecreasing the volume during the ice is melting. Therefore, the icefloats on the melted water, the ice will always contact the bottom ofthe upper part. Accordingly, the serving food on the upper part of theutensil is always kept cooling. The water in the utensil won t befluctuated during the serving.

Herein, the elastic part (4 i) could be made of material havingflexibility and restoring force, such as a robber, plastic or resin.

The inner surface of the lower part (3 i) is treated to be rough foreasily attaching the insulating materials.

The plug bolt (5 i) forms a hollow channel at center with no hex head.The hollow channel has a step, which is a conjunction of inner andouter, two different diameters. A sealing seat (53 b) is formed on thestep for mounting an annular sealing ring (56 a) and a T-shaped valve(53 c). At a tip of the T-shaped valve (53 c), a pin hole is formed forinstalling a split pin (59 a). The annular sealing ring (56 a) and theT-shaped valve (53 c) are inserted to the hollow channel, then; installa spring (58 a), a washer (59) and a split pin (59 a) to assemble asafety valve.

The T-shaped valve (53 c) forming a round head is not protruded out fromthe bottom of the lower part (3 c) to be a smooth bottom surface.

The assembling method of the cooling utensil according to the tenthembodiment of the present invention is shown as follow:

First, the inner surface of the lower part (3 i) is treated to be roughfor easily attaching the insulating materials. The elastic part (4 i) ismade of the insulating material, which has flexibility and restoringcapability. The elastic part (4 i) is attached inner surface of thelower part (3 i), so that it prevents penetrating of the water. Next,place the upper part (2 i) over the insulation material attached lowerpart (3 i) for welding, argon arc welding or binding depending on thepart materials. Finally, the cavity (25) is fully filled the water orcoolant through the water inlet, which is formed at the center hollow ofthe fastening bolt (36), and the fastening bolt (36) and the plug bolt(5 i) installed under the lower part (3 i) are tightly fastened tocomplete the assembly.

The usage of the cooling utensil according to the tenth embodiment ofthe present invention is shown as follow: when the cooling utensil isplaced in a freezer, the fully filled water in the cavity (25) is freezeto the ice. Then the elastic part (4 i) will be swollen out due to theexpansion of the volume. If the elastic part (4 i) is not employed, theupper part (2 i) would be got damaged due to the expansion of thevolume. As a result, the upper part (2 i) is protected from the volumeexpansion.

Reversely, when the freeze utensil (1 i) is used in the roomtemperature, the ice in the cavity (25) starts to melt. The elastic part(4 i) is restoring to push up the shrunken cavity as the ice progressmelting. Therefore, there is only mixture of the ice and melted water inthe cavity (25) with out air. Because the ice floats on the melted waterto contact the bottom of the upper part (2 i), it is effectively coolingthe serving food.

FIG. 23 is a schematic view showing the exploded cooling utensilaccording to the eleventh embodiment of the present invention. FIG. 24is the cross sectional view of the assembled cooling utensil accordingto the eleventh embodiment of the present invention.

The cooling utensil (1 j) according to the eleventh embodiment of thepresent invention comprises an upper part (2 j), a bellows-type handle(10), a lower part (3 j) forming a base and a sealing cap (11).

The upper part (2 j) has formed a convex-shaped top with series ofgrooves (23) from top to edge in the radial directions to drain thecondensed water, so that the food served on the utensil will notabsorbed the condensed water. Thus the food maintains fresh and tasty atthe cool temperature.

A expansion circular flange (20) forming double thin layers with ahollow between the layers is formed at a junction of the upper part (2j) and the lower part (3 j) for absorbing the expansion or shrinking toprevent the distortion of the upper and lower parts.

The lower part (3 j) working as a base, has horizontally attached abellows-type handle (10) at one side for activating expansion or shrinkaccording to the expanding or shrinking due to the freezing or meltingof the ice, so that it prevents the distortion of the upper part and thelower part.

The bellows-type handle (10) and the water inlet (33) are installed atthe convenient location based on the structural design.

The sealing cap (11) forming a female thread mates with the male threadon the tip of the bellows-type handle (10) for sealing the cavity (25).

It is not shown in figures that the upper part of the utensil hasprovided a cover for maintaining the cooling for a long time. It is alsoconvenient to carry, when the cover is locked to the upper part.

The producing process and effect of the cooling utensil of the eleventhembodiment of the present invention is as follows:

The cooling utensil configured with the upper part (2 j), lower part (3j) and the bellows-type handle (10) without the elastic part, adopts thematerial having flexibility. For example, if the material, such araisin, especially, Polyethylene Terephthalate (PET) is used to productby the blow molding, it is possible to mass production with low cost.

Therefore, the present cooling utensil can be used for displaying thefood at the food store, or carrying the raw fish to the outdoor picnic.Further, the melted water in the cooling cavity (25) of the utensil (1j) can be used as a drinking water, at the outdoor.

Further, the cooling utensil (1 j) according to the eleventh embodimentof the present invention, the cavity (25) formed between the upper part(2 j) and the lower part (3 j) is filled the water or coolant. Then, thewater inlet is closed with the sealing cap (11) for freezing in thefreezer. While the water is freezing or melting, the expansion-shrinkabsorber, such as the bellows-type handle (10) and the expansioncircular flange (20) is compensated to keep out the damage to theutensil.

As discussed so far, the cooling utensil (1 j) of the eleventhembodiment of the present invention, it has designed the special partsto adopt the special property of materials, such as the flexibility orrestoring capability depending on the freezing or melting of the ice tokeep the original shape.

FIG. 25 is a schematic view showing the exploded cooling utensilaccording to the twelfth embodiment of the present invention. FIG. 26 isthe cross sectional view of the assembled cooling utensil according tothe twelfth embodiment of the present invention.

The cooling utensil (1 k) according to the twelfth embodiment of thepresent invention comprises an upper part (2 k), a lower part (3 k), anelastic tube (4 k) and a sea ling plug bolt (33).

The upper part (2 k) has a rectangular-shaped plate forming a pluralityof pyramid shaped protrusions (22) for draining the condensed water, sothat the food keep out of absorbing moistures. The lower part (3 k)forms a rectangular-shaped box without a top for using as a base. Acavity (25) is formed between the upper part (2 k) and the lower part (3k) for filling the water. The elastic tube (4 k) is inserted into thecavity (25). The lower part (3 k) has built a dual wall to form a vacuumgap between the inner wall and the outer wall for insulation, so thatthe outer wall has no condensed water gained.

The lower part (3 k) has a circular opening at one lateral wall to forma water inlet (33). The water inlet (33) has formed a stepped portion(33 a), which has reduced inner diameter at inner portion. The waterinlet (33) has formed a female thread for inserting the plug bolt (5 k).The shape of the water inlet (33) is varied depending on the materialsand designs of the cooling utensil.

The elastic tube (4 k) made of the material having flexibility,restoring capability and water proof, comprises an inlet busing withopened mouth, a long tube body and a sealing ring (43). The water inlet(33) has formed a bushing (33 a) and the plug bolt (5 k) mounted at thecenter for sealing the water filled cavity.

Further, the elastic tube (4 k) made of the elastic material will beexpanded when the water is freeze in the freezer to prevent the possibledamages due to the volume expansion, and installed the sealing ring (43)to prevent a leaking from the cavity (25). The water inlet (33) issealed by fastening the plug bolt (5 k).

Further, the air filled elastic tube (4 k), which is independent fromthe lower part (3 k), is inserted into the cavity; the elastic tube (4k) will be floated arbitrary position depending on setting location ofthe cooling utensil. In some case, if the cooling utensil is freeze whenthe air filled elastic tube (4 k) is touched the bottom of the upperpart (2 k), the elastic tube (4 k) blocks out the cooling transfer. Ifthe elastic tube (4 k) is sifted to one side, the cooling utensil mayget crack while the water is freezing, because the elastic tube (4 k)can not absorb the volume expansion of the other side.

The plug bolt (5 k) forming a male thread with headless is used to plugthe water inlet to seal the cavity (25).

It is not seen in the figure, but it is possible to mount a safety valveon the upper part (2 k) or lower part (3 k). Further, a thermometer canbe attached on the upper part to feel visual cooling to stimulate theappetite.

The producing process of the cooling utensil of the twelfth embodimentof the present invention is as follows:

The upper part (2 k) and the lower part (3 k) are combined together bybinding means, such as a welding or adhering to form a cavity (32)between them. The water or coolant is fully filled through the waterinlet (33). The elastic tube (4 k) is inserted into the cavity (25);next the plug bolt (5 k) is fastened to complete the cooling utensil (1k).

The effective operation of the cooling utensil of the twelfth embodimentof the present invention is as follows: the cooling utensil (1 k) isprepared to serve in the freezer. Then the serving food is placed on topof the upper part (2 k). Even if, the ice is melting in the coolingcavity (25), the ice is contacted the bottom of the upper part (2 k) allthe time as described in the first embodiment of the present invention.The cooling effect is constant to keep the food cool during the servingperiod.

Further, the cooling utensil (1 k) of the twelfth embodiment of thepresent invention is as follows: The cooling cavity (32) is formedbetween the upper part (2 k) and the lower part (3 k) to fully fill thewater or coolant through the water inlet (33). The elastic tube (4 k) isinserted into the cavity (25); next the plug bolt (5 k) is fastened tocomplete the cooling utensil (1 k). The structure is simply designed toeasy assembly, thus, the production cost is low.

FIG. 27 is a schematic view of the exploded cooling utensil according tothe thirteenth embodiment of the present invention.

The cooling utensil (1 k 1) according to the thirteenth embodiment ofthe present invention comprises an upper part (2 k 1), a lower part (3 k1), an elastic tube (4 k 1) and a plug nut (5 k 1) for closing the waterinlet (33).

The basic configuration of the cooling utensil (1 k 1) of the thirteenthembodiment is same as the twelfth embodiment of the present inventionexcepting the shape.

The upper part (2 k 1) used for serving food, forms a circular platewith a plurality of grooves (23) in radial direction for draining thecondensed water to keep off the food wet. The lower part (3 k 1)supporting the upper part (2 k 1) forms a cooling cavity (25) forinserting the elastic tube (4 k 1). The elastic tube (4 k 1) is insertedthrough a circular opening formed at one lateral wall of the lower part(3 k 1). The cooling cavity (25) is filled water through the water inlet(33). The plug nut (5 k 1) is mounted on the male thread of the waterinlet (33). The material of the elastic tube (4 k 1) has flexibility,elastic restoring force and water proof. The elastic tube (4 k 1)forming a long tube type has a mouth busing for mounting a sealing ring(43). Then, the assembly of the elastic tube (4 k 1) is mounted at themouth of the water inlet (33). As the plug nut (5 k 1) is tightlyfastened on the water inlet (33), the cavity is sealed The plug nut (5 k1) forming a female thread mates to the water inlet (33) to depress thesealing ring (43) sealing the cooling cavity (25) to prevent leaking.

FIG. 28 is a schematic view of the exploded cooling utensil according tothe fourteenth embodiment of the present invention. FIG. 29 is the crosssectional view of the assembled cooling utensil according to thefourteenth embodiment of the present invention.

The cooling utensil according to the fourteenth embodiment of thepresent invention comprises a cooling bowl (1 m) including an upper part(2 m), a lower part (3 m), an elastic tube (4 m) and a plug bolt (5 m)for blocking the water inlet (33) on the base and a cooling bowl cover(9) including an upper part (2 m), a lower part (3 m), an elastic tube(4 m) and a plug bolt (5 m) for blocking the water inlet (33) forming aknob (5 m 1) on the top.

The upper part (2 m) of the cooling bowl forms a shallow dish forcontaining the serving food. The upper part (2 m) of the cooling bowlcover (9) forms a shallow dish for protecting and reflecting the chillto the serving food.

The lower part (3 m) of the cooling bowl forms a deep bowl shape forproviding the cooling cavity (25) and installing the elastic tube (4 m).The lower part (3 m) working as a base of the cooling bowl has dualwalls to form a vacuum (32) between the inner and outer walls forinsulating effect. Thus, it will not gather the condensed water.

The water inlet (33) has a bushing type entrance. The inner channel ofthe busing has a female thread at front portion to mount a plug bolt (5m), and a step (33 a) at rear portion, which the inner diameter isstepped down.

The elastic tube (4 m) forming a mushroom shaped tube is made of thematerial having the property of flexibility, elastically restoringforce, and water proof. The inner busing tube of the water inlet (33)has formed the step (33 a) for installing the sealing ring (43) and theplug bolt (5 m) for sealing the tube.

It is not seen in the drawing, but, it is possible to install a springinside the elastic tube (4 m) for assisting the elastically restoringforce when the volume is decreased according to the ice melting. Thus,the ice always contacts the bottom of the upper part to keep cooling fora long time. The plug bolt (5 m) forming a male thread is a head lessbolt to mount the inner mouth of the water inlet (33) to seal thecooling cavity (25).

On the other hand, the plug bolt (5 m 1) of the bowl cover (9) forming amale thread has a knob for handling and mounting to the inner mouth ofthe water inlet (33) to seal the cooling cavity (25).

It is not shown in figure, but it is possible to install a latch aroundthe rim of the cooling bowl (1 m) and the bowl cover (9) to lock. So, itis convenient to carry when the cover is locked by the latch on thebowl. The safety valve could be mounted on the cooling bowl (1 m) or thebowl cover (9). Further, a thermometer could be attached to feel visualcooling to stimulate the appetite.

The cooling bowl (1 m) according to the fourteenth embodiment of thepresent invention is included the cooling bowl cover (9) for keeping theserving food cool for a long time.

FIG. 30 is a schematic view of the exploded cooling utensil according tothe fifteenth embodiment of the present invention. FIG. 31 is the crosssectional view of the assembled cooling utensil according to thefifteenth embodiment of the present invention.

The cooling bowl (1 n) according to the fifteenth embodiment of thepresent invention comprises an upper part (2 n), a lower part (3 n), anelastic tube (4 n) and a cap nut (5 n). The inner space of the elastictube (4 n), a spring (8) is installed. The cap nut (5 n) is used toclose the water inlet (33) on the bottom of a cooling bowl.

The upper part (2 n) of the cooling bowl (1 n) forms ahemispherical-shaped top plate with a summit at the center and aplurality of half marble-shaped protrusions on the top plate fordraining the condensed water to avoid the food getting wet.

The lower part (3 n) forms an inner circular shape and a step-down outerannular shape has a flanged circular opening at the center to form awater inlet (33). The outer surface of the flange forms a male threadfor mating a cap nut (5 n).

The upper part (2 n) and the lower part (3 n) are made of the metalmaterials, such as a stainless, aluminum, magnesium-aluminum alloy orclad plate binding two different metals, and non-metal materials, suchas a glass, china, ceramic, jade stone or melamine polyester.Especially, the metal materials or raisin are perform the surfacetreatment, such as a plating, silver-nano coating, ceramic coating,anodizing, for providing an elegant image of high quality. Further, itis known that the silver-nano coated utensil have anti-biotic effects tokill the germ in the law fish.

The elastic tube (4 n) forming a mushroom shaped tube is made of thematerial having the property of flexibility, elastically restoringforce, and water proof. The inner busing tube of the water inlet (33)has formed the step (33 a) for installing the sealing ring (43) and thecap bolt (5 m) for sealing the tube. At the summit of the mushroomshaped tube,

The cooling cavity is formed between the upper part having thehemispherical shape and the elastic tube (4 n) having the mushroom shapefor filling the water. The elastic tube (4 n) has enough expandablesurface for absorbing the expanding and shrinking of the volume changesaccording to the expanding and shrinking during the freezing andmelting, so that it is effectively preventing the damage or distortionof the utensil.

The water inlet (33) has a circular opening to install a busing-typetube for mounting the elastic tube (4 n). The busing-type tube has thestep (33 a) its inner core for installing the sealing ring (43) and thecap bolt (5 m) for sealing the cooling cavity.

Herein, the elastic tube (4 n) can vary its shape and size to form aflower or other decorative characters. Then, it will be placed inside ofthe cooling cavity (35). If the upper bowl (2 n) is made of transparentglass, the user can see the decorative shape of the elastic tube (4 n)inside of the bowl while serving the food. Therefore, it has an effectto feel the serving food fresh and tasty, and stimulate the appetite.

The spring (8) is installed inside of the elastic tube (4 n) forassisting the elastically restoring force when the volume is decreaseddue to the melting of the ice. Thus, the ice is kept contacting thebottom of the upper part for a long time.

The cap nut (5 n) is used to close the water inlet (33) of the lowerpart (3 n). The cap nut (5 n) is made of either a soft material, such asa plastic or a hard material, such as a glass or ceramic. However, thecap nut (5 n) must be made as same material of the lower part (3 n) toprevent loosening the cap nut (5 n) by itself due to the poor frictionalforces between the engaged threads.

It is not shown in figure, but it is possible to install a safety valveon the upper part or lower part of the cooling bowl. Further, athermometer can be attached to show the cooling temperature to feel thefresh and stimulate the appetite.

The cooling bowl (1 k) according to the fifteenth embodiment of thepresent invention is formed a large-sized dish-type plate for servingthe law fish.

If a cooling bowl (1 n) can be overlapped on the regular dish plate, itis possible to select various dishes without laying the sliced radishunder the food.

FIG. 32 is a schematic view of the exploded cooling utensil according tothe sixteenth embodiment of the present invention. FIG. 33 is the crosssectional view of the assembled cooling utensil according to thesixteenth embodiment of the present invention.

The cooling bowl (1 p) according to the sixteenth embodiment of thepresent invention comprises an upper part (2 p), a lower part (3 p), anelastic tube (4 p) and a plug bolt (5 n) for blocking the water inlet(33) on the bottom of a cooling bowl.

The upper part (2 p) of the cooling bowl (1 p) forms ahemispherical-shaped top plate with a center summit and a plurality ofgrooves (23) formed in the radial direction from the summit to thecircumferential edge on the top plate for draining the condensed waterto avoid the food getting wet.

The lower part (3 p) forming a disk-shaped plate has an inwardly flangedcircular opening at the center to form a water inlet (33). The flangedcircular opening has a stopper at its inner end. The inner surface ofthe flanged circular opening forms a female thread for mounting a plugbolt (5 p).

The elastic tube (4 p) having property of the flexibility, elasticallyrestoring force, and water proof forms a mushroom shape with aclosed-top tap protrusion. The water inlet (33) has formed an inwardlybent flanged opening on the bottom of the lower part for mounting theplug bolt (5 n). A stopper is formed inside of the bent flanged openingfor installing the sealing ring (43) for sealing the tube.

Further, the elastic tube (4 p) may have various shapes or patterns ofdecoration to feel diversion.

The elastic tube (4 p) has an air filler having a press pin shaped softvalve (44) with a tiny needle hole at center and a clamp ring (45) forclamping the neck of the soft valve (44). The soft valve (44) isprotruded inwardly for supplying air into the tube. The body of theelastic tube (4 p) is squeezed to push into the cooling cavity (25)through the water inlet (33). Then the air is injected into the elastictube (4 p) through the need hole of the soft valve (44) for fullyinflating the tube to has the elastically restoring force.

Such a configured elastic tube (4 p) is made of the robber. The upperportion and the lower portion of the elastic tube are separatelyproduced. The two pieces are glued together to be a body. The adequateamount of air is injected to fully inflate the elastic tube through theneedle valve hole for providing elastically restoring force. Then, theclamp ring (45) is set around the neck of the soft valve (44) forclamping to seal.

Alternatively, a check valve having an anti-reverse flow can be adoptedto fill the air.

Another kind of the soft tube, which is made of the elastic robberwithout a predrilled needle hole, could be used to prick the needle intothe soft valve for injecting the air. After fully inflating the tube,then glue the needle hole to be permanently sealed.

The plug bolt (5 p) is formed a male thread for mounting to the waterinlet (33) at the same time, to seal the air leaking from the tube.

It is not shown in figure, but it is possible to install a safety valveon the upper part or lower part of the cooling bowl. Further, athermometer can be attached to show the cooling temperature to feel thefresh and stimulate the appetite.

FIG. 34 is a schematic view of the exploded cooling utensil according tothe seventeenth embodiment of the present invention. FIG. 35 is thecross sectional view of the assembled cooling utensil according to theseventeenth embodiment of the present invention.

The cooling bowl (1 q) according to the seventeenth embodiment of thepresent invention comprises an upper part (2 q), a lower part (3 q), anelastic tube (4 q) and a plug bolt (5 q) for blocking the water inlet(33) on the bottom of a cooling bowl.

The configuration and the operational effect of the cooling bowl (1 q)according to the seventeenth embodiment of the present invention areidentical to the fifteenth embodiment of the present invention.

The upper part (2 q) of the cooling bowl (1 q) forms ahemispherical-shaped top plate with a summit at the center, an annularframe around the rim of the top plate, and a plurality of halfmarble-shaped protrusions on the top plate for draining the condensedwater to avoid the food getting wet.

The water inlet (33) on bottom of the lower part (3 q) has a rubber plug(5 q), which has a smooth lateral surface without thread. The mouth ofthe water inlet (33) has installed a rubber bushing having slipperyinner surface with elasticity to tightly sealing the tube.

If the bowl is accidentally heated, the rubber plug (5 q) will be offfrom the water inlet (33) to release the pressurized air by itself,working as a safety valve.

FIG. 36 is a schematic view of the exploded cooling utensil according tothe eighteenth embodiment of the present invention. FIG. 37 is theschematic view of the assembled cooling utensil according to theeighteenth embodiment of the present invention. FIG. 38 is an overalloutlook of the assembled cooling utensil according to the eighteenthembodiment of the present invention. FIG. 39 is the cross sectional viewof the cooling utensil according to the eighteenth embodiment of thepresent invention. FIG. 40 is an outlook of the alternative top plate ofthe assembled cooling utensil according to the eighteenth embodiment ofthe present invention. FIG. 41 is a practical serving on the alternativetop plate of the cooling utensil according to the eighteenth embodimentof the present invention. FIG. 42 is across sectional view of thepractical serving on the alternative top plate of the cooling utensilaccording to the eighteenth embodiment of the present invention.

The cooling utensil (1 r) according to the eighteenth embodiment of thepresent invention comprises a cooling plate unit (200) and a heatemitting unit (300). The heat emitting unit (300) comprises a base(108), cooling fan (107), heat emitting plate (106), a power source,thermal sensor and thermometer. The cooling plate unit (200) comprises afixture plate (104), thermal element (101), rectangular-shapedinsulation pad (102), thermal exchanger (103), sealant (27), upper frame(2 r), lower frame (3 r), elastic tube (4 r) and a number of thefastening bolts (105) for assembly. The elastic tube (4 r) is sealed bya plug bolt (5 r). Additionally, a cover (9 r) is used to cover theupper frame (2 r).

Alternatively, the fixture plate (104), thermal element (101),rectangular insulation pad (102), and thermal exchanger (103) of thecooling plate unit (200) could assemble to be a part of the heatemitting unit (300).

The upper frame (2 r), which is the surface for serving the food, formsa plurality of grooves (23) formed in the radial direction from thecenter to the peripheral edge for draining the condensed water to avoidthe food getting wet.

As seen in FIGS. 40 to 42, the top plate has pre-template cup holder toplace a cold dish (14), glasses (15) and bottled beer (13). Thepre-template plate forms a plurality of punched out circular holders (23a) for placing the glasses and bottles and a large oval holder forplacing a dish.

The cooling cavity (25) has surrounded by an insulation (12), which hassame shape of the pre-template plate for prevent loosing cooling.

It is not shown in the figure, but it is possible to divide the topplate into multiple compartments for serving the various kinds of food.

The lower frame (3 r), which is a base for supporting the upper frame (2r), contains a pair of long-shaped elastic tubes (4 r). The coolingcavity (25) is formed outside of the elastic tubes (4 r) in the lowerframe (3 r) for filling water or coolant. The lower frame (3 r) forms apair of openings at one lateral wall to mount the water inlets (33) forinserting the pair of the elastic tubes (4 r). The water inlets (33)have installed a pair of bushings for mounting the sealing rings (43) onthe steps formed inside of the bushings and mounting the plug bolts (5r) at the mouth of the water inlets (33) for sealing the cooling cavity(25) to prevent leaking of the water.

The elastic tube (4 r) made of the material having flexibility,restoring capability and water proof, comprises a long tube body, abusing at the mouth and a sealing ring (43). The water inlet (33) hasinstalled a bushing (33 a) at the openings and the plug bolts (5 r)mounted at the center for sealing the cooling cavity.

The plug bolts (5 r) form the mail threads without bolt head formounting to the water inlets (33).

A frame sealing (27) is placed between the upper frame (2 r) and thelower frame (3 r) for sealing. The thermal exchanger (103) contacts withthe thermal element (101) to absorb and heat transfer to the lower frame(3 r). The rectangular shaped insulation pad (102) is installed betweenthe upper frame (2 r) and the lower frame (3 r) to block the thermalexchange. However, the rectangular shaped insulation pad (102) has asquare opening at the center, so that the thermal element (101) allowsthermal communicating through the opening.

The thermal element (101) having Peltier-Effect is located on theopening of the rectangular shaped insulation pad (102) to absorb theheat from upper portion and emit the heat to the lower portion.

The thermal element (101) adopts the Peltier-Effect, which has a buttjoint of two different metal plates connected to flow the electricalcurrent. Then, one terminal is absorbing the heat, but the otherterminal emits the heat depending on the current flow direction.

Instead of the two different metal plates, the semiconductors havingdifferent conduction, such as Bismuth (Bi) and Tellurium (Te) can beadopted. Thus, it is possible to obtain the thermal element (101) havingthe Peltier-Effect, which has high efficient of heat absorption andemission. This thermal element (101) has a merit to easily convert thedirection of heat absorption and emission by altering the current flowdirection. Further it is easily to control the strength of heatabsorption and emission by adjusting the intense of the current flow.

The fixture plate (104), which supports the cooling plate unit (200), ismade of material having good heat conduction, such as aluminum forcooling the thermal element (101).

As shown in the figure, the cover (9 r) is separately provided. At leastone pair of the latches is oppositely installed on the rim of the upperframe (2 r) to lock or open. The safety valve could be mounted on theupper frame (2 r) or the lower frame (3 r).

So far, the configuration of the cooling plate unit (200) comprisesthat: the rectangular shaped sealant (27) to seal the upper frame (2 r)and the lower frame (3 r); the thermal element (101) is installed underthe center of rectangular-shaped insulation pad (102), and the thermalexchanger (103) is installed on the center of rectangular-shapedinsulation pad (102). Then, the cooling plate unit (200) including thefixture plate (104) and the elastic tube (4 r) is assembled by thefastening bolts (105).

The elastic tube (4 r) is inserted into the upper frame (2 r). Then, thecooling cavity (25) is fully filled the water through the water inlet(33) and sealed by a plug bolt (5 r) to complete the assembly of thecooling plate unit (200).

The chill (heat) emitting plate (106) is made of the material havinggood conduction, such as aluminum or copper with multiple of fins forcooling heats generated by the thermal element (101).

The cooling fan (107) having the blade and motor is forcibly circulatingthe air to accelerate the cooling effect of the chill (heat) emittingplate (106) to escalate the efficiency of the thermal element (101).

Further, the heat emitting unit (300), which is mounted on the base(108), contains the chill (heat) emitting plate (106), cooling fan(107), the thermometer, the thermal sensor, power supply unit and thecontrol unit,

The power supply unit converts the alternate current (AC) to the directcurrent (DC).

The thermal sensor detects the temperature of the upper frame of thechill (or heat) emitting unit for transmitting the detected signal tothe control unit. The control unit monitors the power supply accordingto the setting temperature. The thermometer, which is installed on thecooling plate unit (200), displays the current operating temperature ofthe heat emitting unit (300). Alternatively, the temperature of thecooling plate unit (200) can be separately displayed.

So far, the heat emitting unit (300) has assembled with the componentsof the chill (heat) emitting plate (106), cooling fan (107) and thepower supply unit on the base (108). Further, the thermometer and thecontrol unit are attached at the outer lateral wall of the base.However, the arrangement of components in the heat emitting unit (300)can be varied depending on the shape of the cooling unit.

Further, the power supply unit can be chargeable, either a chargingmeans for direct contacting the both terminals or a non-contactingmeans, which is used a magnetic induction means that the magnetic fieldgenerated on the first coil is induced to the second coil of the batteryto supply the current.

The operating process and the effects of the cooling utensil (1 r)according to the eighteenth embodiment of the present invention are asfollows:

First, the cooling plate unit (200) is placed on the heat emitting unit(300). Then, the power supply unit is turned on to supply the power, thethermal element (101) stars to absorb the heat from the upper unit toemit the lower unit. Therefore, the upper unit is get cold, but thelower unit getting hot. Accordingly, the cooling plate unit (200) isgetting cold, so that the water in the cooling cavity (25) is freezing.If it is too hot, the cooling fan (107) in the heat emitting unit (300)starts rotating to cooling down the thermal element (101) for normaloperation.

Herein, as expanding the volume when the fully filled water in thecooling cavity (25) of the upper frame (2 r) is freezing, the elastictube (4 r) is squeezed. On the other hand, the ice is melting during theserving, the elastic tube (4 r) is restored. Because the cooling cavity(25) is always fully filled with the mixture of the ice and meltingwater, the upper unit (2 r) is contact with the ice to efficientlytransfer the cooling to the serving food. Due to shrinking and expansionof the elastic tube (4 r), the upper unit (2 r) is prevented thepossible damages or distortion from the freezing.

The upper unit (2 r) may have the pre-template cup holder to place acold dish, glasses and bottles, which is suitable to use in a restaurantor bar for the guests, who stay longer for private chatting, or a buffetrestaurant, which display the many kind of cold foods.

Such a thermal element (101) is adopted for freezing the water in thecooling cavity. Thus, it is possible to produce the various type ofcooling plate unit (200). If the power supply is not available, it isconveniently separated the heat emitting unit (300) for using thecooling plate unit (200) only.

FIG. 43 is a schematic view of the exploded cooling utensil according tothe nineteenth embodiment of the present invention. FIG. 44 is theschematic view of the assembled cooling utensil according to thenineteenth embodiment of the present invention. FIG. 45 is an overalloutlook of the assembled cooling utensil according to the nineteenthembodiment of the present invention.

The cooling utensil (1 s) according to the nineteenth embodiment of thepresent invention comprises a cooling plate unit (210) and a chillingunit (310). The chilling unit (310) comprises a base (115), expansioncoil (111), compressor (114), condenser (115), cooling fan (116),insulation (112), cooling plate (113), power supply unit, controllingunit, thermal sensor and thermometer. The cooling plate unit (210)comprises an upper frame (2 s), sealant (27), lower frame (3 s), and anumber of the fastening bolts (105) for assembly. Further, the coolingplate unit (210) contains the elastic tube (4 s) inside thereof, and theplug bolt (5 s) is sealed the water inlet. Additionally, a cover (9 r)is used to cover the upper frame (2 r).

The upper frame (2 s), which is the surface for serving the food, formsa plurality of grooves (23), formed in the radial direction from thecenter to the peripheral edge for draining the condensed water to avoidthe food getting wet.

It is not shown in the figure, but it is possible to divide the upperframe (2 s) into multiple compartments for serving the various kinds offood.

The lower frame (3 s), which is a base for supporting the upper frame (2s), contains a pair of long-shaped elastic tubes (4 s). The coolingcavity (25) is formed outside of the elastic tubes (4 s) in the lowerframe (3 s) for filling water or coolant. The lower frame (3 s) forms apair of openings at one lateral wall to mount the water inlets (33) forinserting the pair of the elastic tubes (4 s). The water inlets (33)have installed a pair of bushings for fixedly mounting the sealing rings(43) on the steps formed inside of the bushings and mounting the plugbolts (5 s) at the mouth of the water inlets (33) for sealing thecooling cavity (25) to prevent leaking of the water.

The elastic tube (4 s) made of the material having flexibility,restoring capability and water proof, comprises a long tube body, abusing at the mouth and a sealing ring (43). The water inlet (33) hasinstalled a bushing (33 a) at the openings and the plug bolts (5 s)mounted at the center for sealing the cooling cavity.

The plug bolts (5 s) form the mail threads without bolt head formounting to the water inlets (33).

A frame sealing (27) is placed between the upper frame (2 s) and thelower frame (3 s) for sealing. As shown in the figure, the cover (9 s)is separately provided. At least one pair of the latches is oppositelyinstalled on the rim of the upper frame (2 s) to lock or open.

It is not shown in the figure, but it is possible to install the safetyvalve on the upper frame (2 s) or the lower frame (3 s).

The components of the cooling plate unit (210) are assembled as follows:first, the rectangular shaped sealant (27) is installed to seal theupper frame (2 s) and the lower frame (3 s); the fastener bolts (7 s)are used to assemble the upper frame (2 s) and the lower frame (3 s) ofthe cooling plate unit (210); the elastic tube (4 s) is inserted intothe cooling plate unit (210) through the water inlet (25), then thecooling cavity (25) formed between the lower frame (3 s) and the outsideof the elastic tubes (4 s) is fully filled the water or coolant; theplug bolt (5 s) is mounted on the water inlet (33) to complete theassembly of the cooling plate unit (210).

The cooling plate (113) made of a material having good conductivity,such as copper or aluminum is effectively reflect the chilly, which isemitted from the expansion coil (111), to the cooling plate unit (210).The insulation (112) forming a rectangular box is installed on thebottom and the lateral walls to surround the expansion coil (111) toefficiently improve the cooling effect. The expansion coil (111) made ofcopper tube is emitting the cooling to the cooling plate unit (210). Thecompressor (114) compresses the incoming coolant gas to be a highlypressurized gas with high temperature for discharging to the condenser(115).

The condenser (115) is cooling down the high pressure and temperaturegas to be a low pressure and temperature by the cooling fan (116) todischarge the expansion coil (111).

The cooling fan (116) having the blade and motor is forcibly circulatingthe air to accelerate the cooling effect of condenser (115) to escalatethe efficiency.

A rectangular box shaped base (117) contains the expansion coil (111),compressor (114), condenser (115), cooling fan (116), control unit,thermal sensor and thermometer.

The thermal sensor detects the surface temperature of the upper frame (2s) to transmit the control unit. The controller including a temperatureadjuster turns on and off the power according to the transmitted signaland the setting temperature. The thermometer is display the currentlydetected temperature of the upper frame (2 s).

As discussed, the chilling unit (310), which is supported on therectangular box shaped base (117) contains the components of theexpansion coil (111), compressor (114), condenser (115), cooling fan(116), control unit, thermal sensor and thermometer. The assemblyprocess of the chilling unit (310) is as follows that: first thecompressor (114) and the condenser (115) are connected to the expansioncoil (111); and the cooling fan (116) is installed; then control unit,thermal sensor and thermometer are installed: the insulation isinstalled surrounding the rectangular box shaped base (117) to completethe assembly of the chilling unit (310).

As noted, it is possible to alter the arrangement of the components inthe chilling unit (310) depending on the shapes of the cooling unit.

The operating process and the effects of the cooling utensil (1 s)according to the nineteenth embodiment of the present invention are asfollows: first, the cooling plate unit (210) is placed above thechilling unit (310). Next, turn the power switch on, so that theexpansion coil (111) is getting cold to freeze the water in the coolingcavity (25) of the cooling plate unit (210). Further, the cooling fan(116) in the chilling unit (310) starts to rotate for cooling down thecondenser to improve the operating efficient.

Using such a coolant for freezing the water in the cooling cavity, it ispossible to produce the various type of cooling plate unit (210). If apower supply is not available, it is conveniently separated the chillingunit (310) for using the cooling plate unit (210) only. The coolingutensils (1 r, 1 s) according to the eighteenth and nineteenthembodiments of the present invention are installed on the dinning table.

1-39. (canceled)
 40. A cooling utensil, which is a proof of freezingcrack and distortion, the cooling utensil comprising: a upper part (2)forming a plate shape for containing a food, a lower part (3) havingsame shape of the upper part (2) for assembling the upper part (2) to beone body, said lower part (3) being as a base, an elastic plate (4)having properties of flexibility, restoring capability and water proof,formed smaller shape than that of the lower part (3) for fitting, acavity (25) formed between the upper part (2) and elastic plate (4) forfilling water or coolant, and a plug bolt (5) to seal the water inlet ofthe cavity (25), a fastening bolt (7) and sealing ring (6) forassembling the upper part (2), the lower part (3) and the elastic plate(4).
 41. The cooling utensil as claimed in claim 40, further comprisinga tube type supporting post (26) integrally attached under the upperpart (2), a water channel (26 a) directed to both lateral sides, a waterinlet (33) integrally attached to the lower part (3) forming a flowingpassage around the fastening bolt (7) to match with the supporting post(26), said elastic plate (4) located between the upper part (2) andlower part (3) forming an opening for passing through the water inlet(33), said cavity (25) being selectively filled either water or coolant,and said fastening bolt (7) inserted through the supporting post (26) totightly assemble the elastic plate (4), upper part (2) and lower part(3), all together.
 42. The cooling utensil as claimed in claim 40,wherein said plug bolt (5) further comprising a bolt head (51) formingan outer hollow and an inner hollow, an outer sealing seat (54 a) formedon a step adjacent to the outer hollow and the inner hollow inside of aplug cap bolt (55) to mount an outer sealing ring (57) and an outervalve (54), an inner sealing seat (53 a) forming on a step adjacent tothe inner and outer hollows for mounting an annular sealing ring (56)and an inner valve (53), an inner valve (53) threaded to a tip of aT-shaped valve rod (52) and the outer valve (54) formed at a head of aT-shaped valve rod (52), and a compression spring (58) mounted on a stemof the T-shaped valve rod (52) for exerting a tension between the innervalve (53) and the plug cap bolt (55), wherein, said inner valve (53)and said the outer valve (54) mounted on the T-shaped valve rod (52) issimultaneously acting as a safety valve when the utensil is overpressurized.
 43. The cooling utensil as claimed in claim 40, whereinsaid upper part and lower part forming a rectangular tray shapeincluding a pair of springs (8) for mounting on a mounting seat, whichis located between the elastic plate (4 a) and the lower part (3 a) forassisting the restoring force when the elastic plate (4 a) is exerting arecovering force and preventing deflection of the elastic plate (4 a).44. The cooling utensil as claimed in claim 40, wherein said upper partand lower part forming a bowl shape, said elastic plate having propertyof flexibility and elasticity for attaching on a surface of the bowl,and said fastening bolt (36) for assembling the upper part and the lowerpart to form a body, said fastening bolt (36) having a function ofsafety valve.
 45. The cooling utensil as claimed in claim 44, whereinsaid fastening bolt (36) further comprising a plug bolt (5 i) forming ahollow channel at center with no bolt head, a sealing seat (53 b)forming at a conjunction point of diameter step down inside of thehollow channel for mounting an annular sealing ring (56 a), and aT-shaped valve (53 c) having a round head and a tip forming a pin holefor inserting a split pin (59 a), said annular sealing ring (56 a) isinserted into the channel, a spring (58 a) and a washer (59) areinserted into the stem of the T-shaped valve (53 c), and the split pin(59 a) put into the pin hole to be the plug bolt (5 i) having a functionof a safety valve.
 46. The cooling utensil as claimed in claim 40,wherein said upper part (2 j) has formed a convex-shaped top with aseries of grooves (23) from top to edge in the radial directions todrain the condensed water, an expansion circular flange (20) formingthin layers with a hollow between the layers at a junction of the upperpart (2 j) and the lower part (3 j) for absorbing expansion orshrinking, the lower part (3 j) forming a bellows-type handle (10)having elastically restoring force for preventing the distortion of theutensil, and a cap nut (11) forming a female thread to close the waterinlet.
 47. The cooling utensil as claimed in claim 40, furthercomprising a cooling cavity (31) formed inner space of the cooling bowlto fill water or coolant for freezing, said lower part (3 k) having acircular opening at one lateral wall to form a water inlet (33), saidcircular opening mounted an inlet busing, a water inlet (33) having abushing (33 a) and a plug bolt (5 k) mounted at the center for sealingthe cavity. an elastic tube (4 k) made of material having flexibility,elastically restoring force and water proof is inserted into the coolingcavity (31) through the water inlet, and a plug bolt (5 k) for closingthe water inlet (33), wherein said lower part (3 k) has built a dualwall to form a vacuum gap between the inner wall and the outer wall forinsulation, said upper part (2 k) has formed a plurality of protrusions(22) for draining the condensed water.
 48. The cooling utensil asclaimed in claim 40, wherein said upper part has formed inclined surfacefrom circumferential edge to top with a plurality of protrusions (22) todrain the condensed water, the lower part (3 n) having a water inlet(33) forming female thread to mate a male thread of a cap nut (5 n). 49.The cooling bowl as claimed in claim 40, wherein said upper part (2 p)forms a hemispherical-shaped top plate inclined to summit and aplurality of grooves (23) formed in the radial direction from the summitto the circumferential edge for draining the condensed water, he lowerpart (3 p) having a water inlet (33) formed flanged circular openingwith a female thread for mounting a plug bolt (5 p).
 50. The coolingbowl as claimed in claim 40, wherein said upper part (2 q) forms ahemispherical-shape inclined to a center, and a plurality of protrusionsfor draining the condensed water, the water inlet (33) installed arubber bushing on bottom of the lower part (3 q) to mount a rubber plug(5 q) for elastically sealing.
 51. A cooling utensil, which is a proofof freezing-crack and distortion, the cooling utensil comprising: acooling cavity formed inner space of the cooling utensil to fill wateror coolant for freezing, a base forming rectangular box-shape withtopless, a cooling fan including a motor and blades and mounted insidethe base, a cooling plate unit (200) having an upper frame (2 r), lowerframe (3 r) and an elastic tube (4 r), a heat emitting unit (300)installed above the cooling fan (107) for transmitting heat from a chill(heat) emitting plate (106), an upper frame (2 r) forming a rectangularshaped box with opened bottom having a water inlet at a lateral wall, alower frame (3 r), which is a base for supporting the upper frame (2 r),an elastic tube (4 r) made of a material having elastically restoringforce and water proof for inserting into the cooling cavity of the upperframe, a plug bolt (5 r) for sealing the water inlet (33). a thermalelement (101) located under the upper frame to absorb heat from upperpart and emit the heat to the lower part, an insulation pad (102) has asquare opening at the center to install the thermal element (101) forthermal communicating, a thermal element (101) adopting Peltier-Effectfor absorbing heat from top surface and emitting the heat to lowersurface, a fixture plate (104) having good heat conduction to installunder the insulation pad (102) and the thermal element (101) fortransmitting heat to the emitting plate (106), and a number of fasteningbolts (105) for assembling the lower frame to upper frame, the coolingplate unit (200) is placed over the heat emitting unit (300).
 52. Thecooling utensil as claimed in claim 51, the cooling utensil furthercomprising an expansion coil (111) connecting to a compressor (114) andcondenser (115) are mounted on the base in the lower frame, a coolingfan (116) for cooling down heats discharged from the condenser (115), aninsulation (112) installed above the expansion coil for blocking outheat transfer, a cooling plate (113) mounted above the expansion coilfor reflecting chilly to the upper frame, an upper frame forming arectangular shaped box with bottomless having a water inlet, a lowerframe forming a rectangular shaped box with topless for mounting theupper frame, and the cooling plate unit (210) is placed over thechilling unit (310).
 53. The cooling utensil as claimed in claim 51,wherein said cooling plate unit (200) assembled with the fixture plate(104), thermal element (101), insulation pad (102), thermal exchanger(103) are placed over the heat emitting unit (300), wherein said heatemitting unit (300) comprising a power supply unit, a thermal sensor athermometer, and an upper frame cover (9 r), said upper frame (2 r)forming a plurality of grooves (23) formed in the radial direction fromthe center to the peripheral edge for draining the condensed water,wherein said power supply unit is adopted a direct charging means fordirectly contacting both terminals.
 54. The cooling utensil as claimedin claim 51, wherein said chilling unit (310) further comprises a powersupply unit, controlling unit, thermal sensor and thermometer, and acover (9 r) for covering the upper frame (2 s), the upper frame (2 s)formed a plurality of grooves (23) in radial direction to drain thecondensed water, and cover latch with hinge installed oppositely on therim of the upper frame (2 r, 2 s) for locking or opening.
 55. Thecooling utensil as claimed in claim 54, wherein said power supply unitis adopted a non-contacting means, which is used a magnetic inductionmeans that the magnetic field generated on the first coil is induced tothe second coil of the battery to supply the current.
 56. A coolingutensil, which is a proof of freezing-crack and distortion, the coolingutensil comprising: an upper part forming a cylindrical-shaped containerwith downward opening having a mail thread (21 a) on outer wall, and anannular shaped frame having a hat-shape, which is slightly inclinedoutward, for serving food on it, a lower part forming acylindrical-shaped container without a top and having a female thread(35) on inner wall for mating to the mail thread (21 a) of the upperpart, an elastic plate forming a disk-shape to fit under a rim of themail thread (21 a) of the upper part (2 c), a set of fastening bolts forassembling the upper part, the lower part and the elastic plate to sealthe water cavity.
 57. The cooling utensil as claimed in claim 56,wherein said upper part forms a cup and said elastic plate forming aflat hat shaped small and shallow basin with annular frame for mating anannular shaped sealing ring (42).
 58. The cooling utensil as claimed inclaim 56, wherein said upper part forms a small basin being divided intotwo by a central compartment and said elastic plate forming a flat hatshaped small and shallow basin with annular frame for mating an annularshaped sealing ring.
 59. The cooling utensil as claimed in claim 56,wherein said upper part comprises an elastic insulator between inner andouter walls, a pair of springs (8) mounted on a pair of mounting seatsbetween the elastic plate (4 a) and the lower part (3 a) for assistingrestoring force when the elastic plate (4 a) is exerted recovering forceto prevent defection of the elastic plate (4 a), said upper partincludes a lid to match with the upper portion of the upper part forsealing, wherein the upper part made of a solid material, a lower partmade of the material having flexibility and elasticity.